Guy Podjarny

Guy Podjarny

Guy Podjarny, or Guypo, is a Chief Product Architect at Akamai. Guy works on Automated Front-End Optimization, and was the co-founder and CTO of, later acquired by Akamai. Guy has been in the web application field for over a decade, moving from Web Application Security to Web Application Performance, but keeping his focus on deep analysis of web pages. Guy is also a self admitted efficiency fanatic, looking to extract the most out of everything, from a packed suitcase to a complex web 2.0 app.

High Performance Images High Performance Images
by Guy Podjarny, Nick Doyle, Tim Kadlec, Mike McCall, Yoav Weiss, Colin Bedell
November 2016
Print: $34.99
Ebook: $29.99

Responsive & Fast Responsive & Fast
by Guy Podjarny
August 2014
Print: $14.99
Ebook: $12.99

Webcast: Stranger Danger: Securing npm Dependencies
January 10, 2017
Guy shares data about risk, shows how to find and fix known vulnerabilities in npm dependencies, discusses how to prioritize the ones worthy of manual inspection, and suggests what to monitor in production.

Webcast: Designing secure experiences: Balancing usability and security
November 17, 2015
In this webcast, Rachel and Guy will combine their UX and security expertise to offer an alternative, showing examples that aspire to solve the problem, and sharing best practices of how to provide a secure experience that doesn't alienate users.

Webcast: High Performance Images - Beautiful Shouldn’t Mean Slow
June 16, 2015
In this prelude webinar to the upcoming High Performance Images book, we'll discuss the ways you can provide the eye-pleasing experience you want without sacrificing your sites performance.

Webcast: Making Responsive Websites Fast
July 01, 2014
In this webcast, we'll review the most common performance pitfalls and show how you can avoid falling into them, keeping your responsive site snappy and fun.

Webcast: Quantifying The Mobile Difference
September 04, 2012
Mobile is different. Gaps in the networks, hardware and software used separates the mobile world from the desktop world. In this webcast presentation, we'll dig into these differences with real numbers, helping us focus on the ones that really matter...

Webcast: Unraveling the Mobile Web
March 29, 2012
In this webcast presentation, we'll go over the different aspects of mobile: network, hardware & software.

Webcast: Mobile & Desktop Cache 2.0: DIY Scriptable Cache
April 27, 2012
In this webcast, we'll show how you can create a new and improved version of the browser cache, built on HTML5 localStorage.